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Move extension patterns from code to data

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GitOrigin-RevId: 2ea4f224f7f00bf7be5f73dd77c4ebe3d69f53ae
This commit is contained in:
Dietrich Epp 2021-03-26 03:09:56 -04:00
parent 79bca732c8
commit 6b7a783916
2 changed files with 62 additions and 43 deletions
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2
defs.h
View File

@ -2,6 +2,8 @@
typedef unsigned char bool;
#define ARRAY_COUNT(x) (sizeof(x) / sizeof(*x))
// =============================================================================
// util.c
// =============================================================================

103
sync.c
View File

@ -112,16 +112,51 @@ static int dir_from_path(short *vRefNum, long *dirID, const char *dirpath) {
return 0;
}
struct extension_info {
unsigned long extension;
file_type type;
};
static const struct extension_info kExtensions1[] = {
{'c', kTypeText},
{'h', kTypeText},
{'r', kTypeText},
};
static const struct extension_info kExtensions2[] = {
{'cc', kTypeText},
{'cp', kTypeText},
{'hh', kTypeText},
};
static const struct extension_info kExtensions3[] = {
{'cpp', kTypeText},
{'cxx', kTypeText},
{'hpp', kTypeText},
{'hxx', kTypeText},
};
static const struct extension_info kExtensions4[] = {
{'rsrc', kTypeResource},
};
static file_type file_type_from_extension(unsigned long extension,
const struct extension_info *info,
int info_count) {
int i;
for (i = 0; i < info_count; i++) {
if (extension == info[i].extension) {
return info[i].type;
}
}
return kTypeUnknown;
}
// Get the file type for a file with the given name.
static file_type file_type_from_name(const unsigned char *name) {
int len, i, stem;
const unsigned char *ext;
char temp[32];
unsigned char c0, c1, c2;
if (EqualString(name, "\pmakefile", false, true)) {
return kTypeText;
}
stem = 0;
len = name[0];
for (i = 1; i <= len; i++) {
@ -129,46 +164,28 @@ static file_type file_type_from_name(const unsigned char *name) {
stem = i;
}
}
if (stem != 0) {
ext = name + stem + 1;
switch (len - stem) {
case 1:
// .c .h .r
c0 = ext[0];
if (c0 == 'c' || c0 == 'h' || c0 == 'r') {
return kTypeText;
}
break;
case 2:
// .cc .cp .hh
c0 = ext[0];
c1 = ext[1];
if (c0 == 'c' && (c1 == 'c' || c1 == 'p') ||
c0 == 'h' && c1 == 'h') {
return kTypeText;
}
break;
case 3:
// .cpp .hpp .cxx .hxx
c0 = ext[0];
c1 = ext[1];
c2 = ext[2];
if ((c0 == 'c' || c0 == 'h') &&
(c1 == 'p' && c2 == 'p' || c1 == 'x' && c2 == 'x')) {
return kTypeText;
}
break;
case 4:
if (ext[0] == 'r' && ext[1] == 's' && ext[2] == 'r' &&
ext[3] == 'c') {
return kTypeResource;
}
break;
if (stem == 0) {
if (EqualString(name, "\pmakefile", false, true)) {
return kTypeText;
}
}
if (gLogLevel >= kLogVerbose) {
p2cstr(temp, name);
fprintf(stderr, "## Ignored: %s\n", temp);
ext = name + stem + 1;
switch (len - stem) {
case 1:
return file_type_from_extension(ext[0], kExtensions1,
ARRAY_COUNT(kExtensions1));
case 2:
return file_type_from_extension((ext[0] << 8) | ext[1], kExtensions2,
ARRAY_COUNT(kExtensions2));
case 3:
return file_type_from_extension(
((unsigned long)ext[0] << 16) | (ext[1] << 8) | ext[2],
kExtensions3, ARRAY_COUNT(kExtensions3));
case 4:
return file_type_from_extension(
((unsigned long)ext[0] << 24) | ((unsigned long)ext[1] << 16) |
(ext[2] << 8) | ext[3],
kExtensions4, ARRAY_COUNT(kExtensions4));
}
return kTypeUnknown;
}